| Preparation of ordered mesoporous silicon carbide monoliths via preceramic polymer nanocasting | |
| Department | 固体润滑国家重点实验室 ; 先进润滑与防护材料研究发展中心 |
Yuan XY(袁晓燕); Lv JW(吕静文); Yan XB(阎兴斌) ; Hu LT(胡丽天); Xue QJ(薛群基)
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| 2011 | |
| Source Publication | Microporous and Mesoporous Materials
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| ISSN | 1387-1811 |
| Volume | 142Pages:754-758 |
| Abstract | Ordered mesoporous silicon carbide (SiC) monoliths have been synthesized using polycarbosilane as starting preceramic polymer and mesoporous silica SBA-15 as start template. SiC-carbon composite monoliths were generated via nanocasting, pressing, and subsequent pyrolysis under nitrogen at 1000 C and 1200 C, respectively. Finally, the carbon template was removed through thermal treat- ment in an ammonia atmosphere to obtain SiC monoliths with ordered mesoporous structures. Inves- tigated by small-angle X-ray diffraction (SA-XRD), powder wide-angle X-ray diffraction (WA-XRD), transmission electron microscopy (TEM), field emission scanning electron microscope (FE-SEM), the nitrogen adsorption–desorption isotherm measurements and thermogravimetric analysis (TGA), the SiC monoliths display crack-free, ordered 2-dimentional hexagonal p6mm symmetry, high specific surface areas and oxidation stability. The porous ceramic monoliths possess compression strength of about 33.5 MPa, which is adequate for their use in several engineering applications. |
| Keyword | Silicon Carbide Monolith Mesoporous Nanocasting |
| Subject Area | 材料科学与物理化学 |
| Funding Organization | the Top Hundred Talents Program of Chinese Academy of Sciences;the National Basic Research 973 Program of China (2011CB706603);the National Nature Science Foundation of China (51005225) |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 低维材料摩擦学组 ; 特种油脂和密封材料组 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/795 |
| Collection | 固体润滑国家重点实验室（LSL） 中国科学院材料磨损与防护重点实验室/先进润滑与防护材料研究发展中心 |
| Corresponding Author | Yan XB(阎兴斌) |
| Recommended Citation GB/T 7714 | Yuan XY,Lv JW,Yan XB,et al. Preparation of ordered mesoporous silicon carbide monoliths via preceramic polymer nanocasting[J]. Microporous and Mesoporous Materials,2011,142:754-758. |
| APA | 袁晓燕,吕静文,阎兴斌,胡丽天,&薛群基.(2011).Preparation of ordered mesoporous silicon carbide monoliths via preceramic polymer nanocasting.Microporous and Mesoporous Materials,142,754-758. |
| MLA | 袁晓燕,et al."Preparation of ordered mesoporous silicon carbide monoliths via preceramic polymer nanocasting".Microporous and Mesoporous Materials 142(2011):754-758. |
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| 2011754-758.PDF（537KB） | 开放获取 | License | View Application Full Text | |||
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